- #89 of 496
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Re: DURAMAX FUEL MILEAGE [victorycruiser]
by fxwg82
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Sep 20, 2005 (8:20 am)
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Replying to: victorycruiser (Sep 19, 2005 9:42 am)
The 285s will definitly fill the wheel wells better and make the truck look better. Everytime I've put 285s on one of my duramaxes, the right front will rub. If ya put splash gaurds on it's worse. By raising the front end with torsion bars is easy to do by reputable alighnment shop and a slight alighnment is needed. It will also rais the front end, leveling the truck.
As for the speedometer: A difference of 2-3 mph faster than it shows. Not a big deal for me and I've never worried about it or inquired about an adjustment.
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- #90 of 496
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Re: Real MPG numbers [06lly]
by jmccormick1
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Sep 22, 2005 (2:13 pm)
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Replying to: 06lly (Aug 16, 2005 9:06 am)
Is the LLY the new Duramax that is coming out with the 06 trucks? I am thinking of waiting for the new engine but it is not widely available.
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- #91 of 496
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New 2006 Duramax mileage
by jmccormick1
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Sep 22, 2005 (2:21 pm)
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Is anyone driving the NEW 2006 Duramax diesel yet? I'm thinking of ordering one with the new engine and am curious regarding fuel mileage in the 2500 truck.
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- #92 of 496
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Re: New 2006 Duramax mileage [jmccormick1]
by kcram HOST
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Sep 22, 2005 (5:00 pm)
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Replying to: jmccormick1 (Sep 22, 2005 2:21 pm)
According to GM's press release, the new higher-output (360/650) Dmax won't be available before November.
kcram - Pickups Host
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- #93 of 496
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Re: New 2006 Duramax mileage [kcram]
by gmboy1
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Sep 24, 2005 (7:50 am)
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Replying to: kcram (Sep 22, 2005 5:00 pm)
My son works for the other guy (Ford) as a mechanic on their diesel engines. They have had a lot of trouble with their variable turbos, and guess what, GM is going to use the exact same turbo (from the same manufacture) in 06' from what I have been told. Anyone else heard about this?
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- #94 of 496
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Re: DURAMAX FUEL MILEAGE [victorycruiser]
by stoneg
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Sep 25, 2005 (5:14 am)
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Replying to: victorycruiser (Sep 19, 2005 9:42 am)
Not true. After installing BF Goodrich ko's 285.75.16, I took my '05 2500HD to the dealership who reclaibrated my speedo (at no charge). Before I put the tires on, I had a leveling kit put on (changed out the torsion bar keys). This lifted the front 2.5 inches to be the same height as the back ($275 installed). Friday I had the front shocks replaced with Blistien 5100 shocks ($250 installed). After doing the leveling kit, the shocks were extended to far, and gave a rougher ride. The new shocks make a washed out dirt road feel like a highway! Didn't turn the torsion bars at all. I did have to trim a little of the front valence to keep from rubbing though. Go with the BF's....you wont get stuck.
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- #95 of 496
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'06 DMAX
by clongwell
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Sep 29, 2005 (8:02 am)
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Under the current GM pricing I could not find anyone that would sell a DMAX with the LBZ engine. I couldn't give up the 9 or 10k off MSRP for an engine upgrade. Has anyone had experience with the 6 speed Allision Auto?
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- #96 of 496
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Re: Love my 2003 DM 2500 HD 4x4 Crew Cab [stoneg]
by aarongd
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Sep 29, 2005 (6:07 pm)
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Replying to: stoneg (Aug 27, 2005 8:03 pm)
i have read that replacing with the stock shocks with the blistien shocks is suppose to make it better. i personally have not done it. as far as fuel economy goes,it did'nt seem to make any difference before or after the lift . i have 265/75/16 tires.i get just about the exact same milage you are stating. i don't know how they are getting the milage they say they are. i've tried driving a constant 60 m.p.h and i might get an extra .5-1.0 mpg more. .one thing that i did try and is pretty inexpensive and seems to work the best is using acetone in my fuel. approx 2 ozs per 10 gallons of fuel. it seemed to bring it up around 2 m.p.g. go to yahoo search and type in acetone diesel. click the first item. big article on using acetone. try it and let me know what you think? Aarongd
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- #97 of 496
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Re: HELP! New Diesel Owner on MPG [benr]
by sleadhead44
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Sep 30, 2005 (5:29 am)
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Replying to: benr (Sep 14, 2005 3:37 am)
Benr,
Yes, I have the 5 spd. Allison Auto Trans, and I always use the tow button. I will have to try it without the tow button on to see what MPG I get. I guess I was just afraid of burning up the tranny if I didn't use it. I use cruise control alot and try not to stomp the gas pedal, I try to keep that to my race car. 
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- #98 of 496
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Re: '06 DMAX [clongwell]
by ruskand
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Sep 30, 2005 (6:59 am)
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Replying to: clongwell (Sep 29, 2005 8:02 am)
The new DMAX with the LBZ engine will start hitting the production lines next week and should start hitting the streets soon after. I just bought a 2006 with the LLY motor that has a lot of the upgrades of the new LBZ motor and it made a huge difference over my 2004. The mileage appears to have increased 3-4 mpg with the modified LLY. With the increased fuel pressures of the LBZ, this may not happen since usually more HP/Torque usually means more fuel (but who knows). Chevy wouldn't even tell me what to expect with the modified LLY.
The 6 speed seems great, shifts smoother than my 2004 did and definitely likes to go fast. I would suggest buying now and saving $10,000 and see what happens with the newer engine. Also, I hear that Bully Dog is already designing new performance parts and looking for testing people on their website.
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